Locomotive driving-box.



J. R. MAGAR'VEY.

LOGOMOTIVE DRIVING BOX.

APPLICATION FILED JAILZI, 1913.

1 57,160. Patented Mar. 25, 1913.

a HM I i WlTNESSES 45 gage;

PATENT orrion.

.roniv in naeanvnv, or scnnnacrnnr, new romp TooZZ w/wm itmay concern; I v I Be it known that :1, JOHN R. Macanvnr, of Schenectady, the county of Schenectadyand State offhlew York, have invented a certain new and useful Improvement in Locomotive Driving-Boxes, of which improvementthe' following is a specification. l

My invention relates to driving boxes for locomotive axles, in which the area of hear.- ing surfaces on theaxles 18 increased toa materially greater extent than thatwhich is obtainable in ordinary practice, by an 'increase of the lengthof the driving box, an,

instance of which is-exemplified in Letters granted and issued to Francis J .Cole, under date of April 30, 1912.

.The object of my invention is to providea driving boxof such type, in which the fully .set forth in Letters ,Patent No. 1,024,620- aforesaid, may be obtained, which hh-ll be applicable. in connection with pedestals, shoes,'wed es, and spring arrange{ ment of the or inary construction, and which shall be readily insertible and removable, as may be-required, thereby .corre s-ondingly simplifyingand' economizing t e cost of construction and maintenance.

. The improvement claimed is hereinafter fullyset forth. c

a In the accompanying drawings Figure 1 -is a transverse section through the side frame members of a locomotive engine,'illus- Z- trating, partly in side elevation andpart-ly in vertical longitudinal section, a'driving" box structure embodyin my invention; Fig.

? ---2, a transverse section t roughthe axle and: driving box, on the line a a of Fig. 1; Fig. w 46) 3, a similar section on the line b b of- Fig; 1;

and Fig. 4:,an isometrical view of the liner of the driving box structure, detached.

M invention is herein exemplifiedas ap in connection with a locomotive en the frame of which is of the standard a type, and comprises two side memhers, which are, as in present practice, spaced at the maximum distance apart available under the necessary limitation implie posed by the width between driving wheel uhs. Each of theside frame members comprises, so far as the portion thereof in which the driving axles are fitted is concerned, the usual top rail, 1, bottom rail, 2, and conlihnecting vertical pedestals, each of which consists of a pair of pedestal jaws, 3, in

Y Specification Letters latent.

a neaticnnl' a Ianhary 2 1313;. ;S,cr1al 1-]fo.743,28

Patent of the United States No. 1,024,620,

advantageous results in practice which are saw aivmam a Ti share:- 25; 913- :Letters Patent No. 1,021,620; atoresaid and the port on of the weight oi. the locomotive applied thereto through a rigid drivingjbox structure, comprising. two open bottomed "sections, 4:, 4,-and an intermediate filler" or spacing" piece, 4 which inthe instance shown, is of substantially U form, and corresponds in depthwith.saidsections. Itmay, however, if prcferred,. be made in separate sections, -located in; opposite sides of, the axle,'wit-h the same operative result. The

the drivingaxle, and each of the sections, i, has an integral driving box,-of substantially ordinary form, on. its outer-end, within which driving bo there is secured .a jour nal bearing, 4:, fitting on, 'andcorresponding in length with,, one of. the axle journals, 6*; The inner ends ofthefsections, 4:, 4c, abut against-the opposite sides of the filler, 4

plane of the locomotive, and. they are rigidly secured together by a 'plujralityof bolts, 4 passing throughsaid filler and through end flanges, 4, on the innerends of the sections, said flanges: preferably extending for the full depth .thereof, in-.ord er to impart increased'strength to the-structure when the 7 sections are bolted together. A lubricant cellar, 42 is fitted in each of the'driving box sections, below the axlejou'rnal, and is held removably in position by bolts, in the usual manner.

The connection of the driving boxes of the two axle journals, as abovade'scribed, provides a continuous structure, w h is both rigid in service, and separable s desired, extending from the outer end/of one axle journal to the corresponding end of the i which one of the sections of: a driving box.-

pared with, the ordinary practiceprior to.

openings ofthe sectionsand the filler are of greater width than the ma.-jor ,diamet er of which is supported by the -driving'axle, is 7 which is located inthe longitudinal central ,rangement appliances set forth in Letters other, and thereby enables the pedestal jaw extensions and special forms of spring ar- Patent No. 1,024,620, to be wholly dispensed with." It will, further, be obvious that, by the application of the rigid structure described, journals of increased length. may

be used, with the usual spring arrangement,

without uneven wear on the ends of the journals; or bearings, for the reason that, while the transverse central planes of the journals do not coincide with the longitudinal central planes of the springs, yet the side frame members,

load is transmitted across the locomotive by means of the stifi' and unyielding driving box structure, and thereby substantially uniform wear will be obtained. p

The conditions, of locomotive engine construction and maintenance require that the driving boxes shall be insertible and removable, for purposes of assembly, renewal, and

repair, without interference with the axle, and wheels, and with the driving box structure above described, their removal may be readily effected by withdrawing the bolts, 4-, by which the sections, 4, 4, are connected, the filler, the driving box wedges and shoes, and the pedestal ties, and moving the sections inwardly, thereby permitting them to be removed from between the wheels after.

emplified, the weight acting on the springs,

9, is transmitted from the springs to the connected driving box sections through verticalspring saddles, 10, the legs of which rest in recesses in the'tops of the driving box sections, on opposite sides of the frame -members, and which support the spring bands, 9*, in seats ontheir upper ends. The weight bearing on the frame is transmitted therefrom-to the ends of the springs through spring hangers, 9 in the ordinarymanner.

Copies of this patent may be obtained for I claim as my invention and desire to secure by Letters Patent 1; ,A driving box structure for a locomotive driving axle, comprising two sections, each having, an integral driving box at one of its ends and a journal bearing secured therein,'and a'boltin flange on its opposite end, an interposed fi ler, and a plurality of bolts passing through the bolting flange and filler and securing the sections rigidly and detachably one to the other.

2. A driving box structure for a locomotive driving axle, comprising two open bottomed sections each havingan integral driving box as one of its ends, and a journal bearing secured therein, and havin a bolting flange on its opposite end exten ing substantially throughout its full depth, an interposed filler of corresponding depth, and a plurality of bolts assing through the bolting flanges and filer and securing the sections rigidly and detachably one to the other.

3. The combination, in a locomotive engine, of a pair of side frame members, a transversely extending driving box structure comprising two sections and an interposed filler, secured together rigidly and detachably, each section having a driving box formed integral with its outer end and fitting in a pedestal in oneof the side frame members, and a driving axle, journaled in said driving boxes. e

4. The combination, in a locomotive engine, of a pair of side frame members, a transversely extending driving box structure comprising two sections andan interposed filler, secured together rigidly and detachably, each section having a driving box formed integral with its outer end and fitting in a pedestal in one of the side frame members, a driving axle journaled in said driving boxes, and springs located a greater distance apart than the middle transverse planes of the driving boxes, each bearing on one of said driving boxes, through spring saddles, on opposite sides of the adjacent side fra me member.

JOHN R. MAGARVEY. WVitness'es it. D.. FINN, (1- C. BAR.

five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

